Cheapest return flights from Boston to San Jose in January from 243€

AirHint found the following cheapest return flights from Boston (BOS) to San Jose (SJO) in January 2026 (see full year).

Return flights

28 Jan - 02 Feb Copa
26 Jan - 29 Jan Copa
23 Jan - 25 Jan Copa
24 Jan - 31 Jan Copa
24 Jan - 07 Feb Spirit Airlines
25 Jan - 07 Feb Spirit Airlines
28 Jan - 07 Feb United
24 Jan - 29 Jan Spirit Airlines
25 Jan - 29 Jan Spirit Airlines
25 Jan - 05 Feb Spirit Airlines
24 Jan - 05 Feb Spirit Airlines
24 Jan - 10 Feb Spirit Airlines
23 Jan - 07 Feb Spirit Airlines
25 Jan - 10 Feb Spirit Airlines
25 Jan - 31 Jan Spirit Airlines
24 Jan - 08 Feb Spirit Airlines
12 Jan - 29 Jan Spirit Airlines
23 Jan - 31 Jan Spirit Airlines
12 Jan - 31 Jan Spirit Airlines
24 Jan - 28 Jan Spirit Airlines

Also check the deals for one-way flights from Boston to San Jose in January.

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